Mount Blanchard WWTP and Sewers - Secondary Treatment Plant in Hancock County, Ohio

Mount Blanchard WWTP and Sewers is a municipal wastewater treatment facility located on SR 103 in Hancock County, Ohio. It serves a small population of 484 residents, reflecting its role in a rural community within the Blanchard River watershed. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal facilities of this scale. With a designed capacity of 246.05 million gallons per year and an actual discharge volume of 170.34 million gallons per year, the plant operates below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into the Blanchard River, a tributary of the Auglaize River, which flows into the Maumee River and ultimately drains into Lake Erie. This watershed is part of the Great Lakes Basin, supporting diverse aquatic life and recreational activities. The plant's operations are regulated under the National Pollutant Discharge Elimination System (NPDES) to protect water quality in this ecologically sensitive region.

The plant discharges into the Blanchard River, which flows into the Auglaize River, then the Maumee River, and finally into Lake Erie. This watershed is part of the Great Lakes Basin, a critical freshwater ecosystem that supports diverse fish populations and migratory birds. The region is also subject to nutrient management concerns, particularly phosphorus loading, which can contribute to algal blooms in Lake Erie.